Acrylic Conformal Coating is a durable finish product that provides an all round protective coating for printed circuit boards against moisture, corrosion, and thermal shock. It protects and insulates electrical and electronic components and assemblies, including generators, motors, transformers, relays, and solenoid coils. For spraying, liquid can be thinned using M.G. Thinner Cleaner. Thin up to one half part thinner to one part coating. Also available in a micro tip pen format.
| Catalog Number | Sizes Available | Description |
|---|---|---|
| 419B-55ML | 55 ml (2 oz) | Bottle |
| 419B-340G (replaced with 419C-340G) | 340 g (12 oz) | Aerosol |
| 419B-1L | 1 L (1 quart) | Liquid |
| 419B-4L | 4 L (1 gal) | Liquid |
| 419B-20L | 20 L (5.3 gal) | Liquid |
| 4190-GP | 0.16 oz | Pen |
Specifications
| Specification | Test Method | Result |
|---|---|---|
| Viscosity | 50-55, 20-25 Sec.s NBR | |
| Dielectric Strength | 1500 V/mil | |
| Dielectric Constant | ASTM-D-150-98 | 3.25 |
| Dissipation Factor | ASTM-D-150-98 | 0.022 |
| Volume Resistivity | ASTM-D-257-99 | 8.72 x 1015 ohm · cm |
| Surface Resistivity | ASTM-D-257-99 | >2.8 x 1017 ohm · cm |
| Moisture Resistance | IPC-TM-650, method 2.6.3.4 | PASS (1500 VDC) |
| Dielectric Withstanding Voltage | IPC-TM-650, method 2.5.7.1 | PASS (1500 VDC) |
| Service Temperature Limit | 105 °C (221 °F) | |
| Tack free time | 10 minutes at 20 °C (68°F) | |
| Recoat time | 2 minutes at 20 °C (68°F) | |
| Full cure | 24 hrs. @ 20°C (68°F) 60 min. @ 65°C (149°F) |
|
| Solids by volume | 18% | |
| Solids by weight | 25% | |